Endless drying chain for envelope-making machines



June 30,- 1925.

T. HUGO ENDLESS DRYING CHAIN FOR ENVELQPE MAKNG MACHINES Illia--..ll

Filed March 15 1924 I I I I I I I CII Cil

Patented June 30, 1925.

UNITED STATES THEODOR HUGO, 0F I'ILIVIERSDORI,` NEAR BERLIN, GERMANY.

ENDLESS DRYING CHAIN FOR ENVELOPE-MAKING MACHINES.

Application led March 13, 1924. Serial No. 699,010.

To all whom t may concern: i

Be it known that I, THEoDor. HUGO, a citizen of the German Republic, residing at IVilmersdorf, near Berlin, Germany, have. invented certain new and useful Improve ments in Endless Drying Chains for Envelope-Making Machines, of which the following is a specication.

The invention relates to improvements in endless drying chains for envelopemaking machines.

In envelope-making machines endless dry ing chains are known in which the prongs of the chain links are provided with ribs, which press upon the under Hap of the envelope. These ribs are so constructed that they make contact in the direction of the places covered with the adhesive and cover them in their width and length. In sach machines envelopes of approximately the same size only can be pressed in the chain in a reliable manner, as only one rib is provided between the prongs of the chain.

The invention enables the treatment of envelopes of various sizes and shapes in the same drying chain with equal success by providing between the. prongs of the chain two or more ribs.

An embodiment of the invention is illustrated in the drawing aiiixed to this specilication and forming part thereof.

Fig. l shows a side elevation of a link of the improved drying chain carrying a substantially square envelope and Fig. 2 the same link supporting a rectangular envelope.

The same letters of reference are used for similar parts in both figures.

Referring to Fig. 1, a, a are the prongs of the drying chain with, for instance, two ribs 79, 7) each. The ribs o, which in contradistinction to the ribs already known are interrupted in the middle make contact with the lower sealing flap d of the envelope in the direction of the places covered with the adhesive, as will clearly be seen in Fig. 1, and thus fulfill the same object as the ribs in the known chains.

Fig. 2 shows an oblong envelope of smaller size between the same chain links. In this case the shorter ribs o make contact with the back of the places of the underiiap d covered with adhesive. n

In a chain with links constructed in the manner shown in Figs. l and 2 envelopes of velopes reach the drying chain from the folding device and then rest upon the feetf of the chain links or upon lateral guide wires g. A

From the above it is obvious, that instead of the two ribs b and b three or more of.y

such ribs may be provided upon lthe prongs of the chain links, in order to enable the chain to deal with envelopes of any possible size and shape.

It will be readily understood that I do not limit myself to the exactdetails of the construction and that these maybe modified within the ambit of my claims without departing from the spirit of my invention or sacrificing any of its advantages.Y I claim:

1. A link for a drying chain having an article-engaging rib deflected to accord with a zone of application of material to be dried on an article.

2. A link for a drying chain having article-engaging ribs extending from opposite sides thereof and toward the inner end of the link to accord with a zone of application of material to be dried on an article.

3. A link for a drying chain having article-engaging ribs each deflected to accord with a different zone of application of material to be dried, Vone of said ribs being longer than the other for compactness and for engagement by an `article primarily engaged by the remaining rib.

4. A link for a drying chain having article-engaging ribs each according with a different zone of application of material to be dried, the rib located out of such zone with respect to an engaged article preventing undue distortion of the article adjacent said Zone. y

5..A link for a drying chain having prongs at the sides thereof, article-engaging ribs on said prongs inclining inwardly and toward each other, and article-engaging ribs shorter than, parallel and relatively` close to the first-mentioned ribs located inwardly thereof.

In testimony whereof I have affixed my signature.

THEODOR HUGO.. 

